H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 305)

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Configuration procedure
By default, ALG is enabled for all protocols.
To enable ALG for protocols:
1. From the navigation tree, select Network > ALG.
The Application Layer Inspection page appears.
Figure 261 ALG configuration
2. Add target application protocols to the Selected Application Protocols list to enable ALG for them.
3. Click Apply.
ALG configuration examples
The following examples describe only ALG-related configurations, assuming that other required
configurations on the server and client have been done.
FTP ALG configuration example
Network requirements
As shown in Figure 262 , a company uses the private network segment 192.168.1.0/24, and has four
public network addresses: 5.5.5.1, 5.5.5.9, 5.5.5.10, and 5.5.5.11. The company wants to provide FTP
services to the outside.
Configure NAT and ALG on the AC so that hosts on the external network can access the FTP server on the
internal network.